Decoupler system for rotor assemblies

A rotor decoupler system for a gas turbine engine, said rotor decoupler system comprising:

• a shaft connected to a rotor;
• a forward bearing support;
• an aft bearing support;
• a forward bearing system comprising an inner race, an outer race and a plurality of bearing elements located between the inner race and the outer race;
• a load reduction system disposed between the forward bearing system and the forward bearing support, said load reduction system comprising at least one fuse attached to the outer race and a damper disposed between the outer race and the bearing support such that the damper transfers at least a part of the radial load from the rotor to the bearing support when at least one fuse fails;
• an aft bearing system located axially aft from the forward bearing system, said aft bearing system comprising an aft inner race, an aft outer race and a plurality of an aft bearing elements located between the aft inner race and the aft outer race;
• and
• a load reduction system disposed between the aft bearing system and the aft bearing support, said load reduction system comprising at least one aft fuse;
• wherein the damper comprises a wire mesh.

A rotor decoupler system for a gas turbine engine, said rotor decoupler system comprising:

• a shaft connected to a rotor;
• at least one bearing system coupled to the shaft and a bearing support;
• and
• a support structure that provides support for the bearing system wherein the support structure is secured to a frame using a load reduction system disposed between the support structure and the frame, said load reduction system comprising at least one extensional fuse for attaching the support structure to the frame and a damper disposed between the support structure and the frame such that the damper transfers at least a part of the load from the rotor to the frame when at least one extensional fuse fails.